Nowadays, despite extensive study of local anesthesia the issues of its quality and safety improvment have not been completely solved. In this regard, studies solving these problems are relevant, which have theoretical, practical and scientific significance.

THE RESEARCH PURPOSE IS

To substantiate the relationship between the width of the mandibular branch and the depth of needle immersion during mandibular anesthesia based on craniometric, X-ray, and clinical studies.

MATERIAL AND METHODS

Anatomic and topographic mandible study was performed in 110 mandibular bones and 158 computed tomography images. At the same time, the thickness of soft tissues in the lower jaw branch area was studied, taking into account the body mass index of the examined patients to determine the depth of the needle immersion. The research data have proved the relationship between the lower jaw branch width and the needle immersion depth during mandibular anesthesia, which contributed to the development of a special Ushnitsky—Chakhov’s table for determining the depth of needle immersion.

RESULTS

The research results determined the variability of the width of the lower jaw branch, which have a direct effect on the depth of needle immersion during mandibular anesthesia. Taking into account these data, a special table has been developed for determining the depth of needle immersion depending on the obtained indicators of the mandible branch width, which ensures more accurate achievement of the target point during mandibular anesthesia.

CONCLUSION

The parameters of the needle immersion depth, including the width of the lower jaw branch, have important theoretical, practical and scientific significance, which can be used in outpatient and inpatient dental care.